Self-inking printing-stamp



G. A. W. RUSHWORTH.

SELF INKING PRINTING STAMP.

APPLICATION man 050.9. 1919.

Patented June 29, 1920.

3 SHEET$-SHEET 1.

G. A. W. RUSHWORTH.

SELF INKING PRINTING STAMP.

APPLICATION FILED DEC.9. 1919.

0 92 1T owm 28 mm H w m3 D m P INVENTOR.

G. ,A. W. RUSHWORTH.

SELF INKING PRINTING STAMP.

APPLICATION FILED 056.9, 1919.

Patented June 29, 1920.

3 SHEETS-SHEET 3.

LIAM RUSHWORTH a W UNITEDVSTATES PATENT OFFICE.

GEORGE ARTHUR WILLIAM RUSHWORTH, OF WILLINGTON,,MANCHESTER, ENGLAND.

SELF-IN KING PRINTING-STAMP.

To all whom it may concern: Be it known that I GEORGE ARTHUR WIL- at Willington, anchester, England, have invented certain new and useful Improvements in Self-linking Printing-Stamps, of which the following is a specification.

This invention relates to self-inking printing stamps in which the rubber or other printing surface is carried in a movable frame and held normally against a stationary inking pad by a spring and turned over and away from the inking pad by the depression of the handle for the operation of printing, this type of stamp being known as a turn-over self-inking stamp.

Although indicating means have been employed in other typesof printing devices to indicate the position of the imprint, such means have not hitherto been applied to turnover self inking stamps above referred to.

The invention consists in a printing stamp having a transparent indicator or a frame carrying a transparent indicator pivoted to the frame of the stamp and providing means for causing the indicator or frame carrying the indicator to be rotated about its pivots out of the pathof the printing surface when the latter is depressed.

The invention will be fully described with reference to the accompanying drawings which show it in various forms.

Figure 1 is a perspective view of a selfinking stamp showing the invention applied in the form of a separate attachment, the stamp being in the up position.

, Fig. 2 is a perspective view of same form of the invention with the stamp in the down or printing position.

Fig. 8 is a section of same form of the invention with the stamp in the up position.

Fig. 4 is a section of same form of the invention with the stamp in the down or printing position.

Fig. 5 is a perspective view of a modified form of the attachment.

Fig. 6 is a perspective view of a further modification of the attachment.

Fig. 7 is a perspective view of frame of stamp showing guide for the transparent index plate.

Fig. 8 is a perspective view of the attachment E shown in position in Figs. 1-4.

Figs. 9 and 10 are perspective views of a Eritish subject, residing Specification of Letters Patent. Patented June 29, 1920;

Application filed December 9, 1919. Serial No. 343,534.

In the form of the invention shown in Figs. 1 to 4:, and Fig. 8, a swinging frame E- is affixed to the top of the frame A by the member 6 about which the swinging frame can pivot at the edge of the frame A. The frame Eis provided with two upwardly extending arms or levers 6" adapted to be engaged by the underside of the reciprocating frame L when the latteris depressed. To

the lower end of the frame E is attached a transparent plate F. Guides or grooves f are formed at the bottom of the frame A for the transparent plate F to slide in. The transparent plate F is lettered or otherwise marked to indicate the position the print or im press from the stamp pad D will take.

he normal position of the pad is that shown in Figs. 1 and 3 withthe transparent %late F in position below the printing stamp and the arms 6 of the frame E projecting upward. When the reciprocating frame C is depressed, the underside engages the arms 6 and depresses them, causing the frame E to swing outward and move the transparent plate F out of the path of the descending printing stamp D, so that the latter can leave its impression or print on the surface of paper or material placed beneath the stamp. The removal of the pressure from the handle C of the reciprocating frame C, allows the latter to return to its normal position by the action of the usual spring within the handle C, and the pressure being at the same time removed from the arms'e' the frame E swings back by reason of its weight to its normal position with the transparent plate F underneath the printing stamp D The transparent plate F may be made of celluloid, gelatin, mica, tracing cloth, fine muslin, or other suitable material and has printed upon it an imprint from the printing stamp D (or other lines or index marks) which will indicate to the user the exact in this case. In Fig. 6 the frame E is provided with a cylindricalportion eito receive apin carriedon the. edge of the topof-the frame A by projections a such as shown in Fig. .7. The frame shown .in Fig. 7, is provided with guide pieces 7 for the transparent plate .formed in one piece .w-iththe frame, I extra guide pieces .f being pressed out of .the .fname, -or.otherwise to .form a complete guide if desired.

The swinging frame-E shown in Fig 6, is only provided with one upwardly extending member eCwith aslot-e forthestem c of the handle of the reciprocating.fname'Qaand a similar construction may if desired-heapplied to the iramesshdwn in .Figs. ,1-A .and Fig. 5.

In the form of the invention shown in Figs. 9, 10 and 11, thetnansparentplate .F is afiixed at one-edge to.-a strip .a, of metal or other material pivoted on the transverse downward movement of the end. of the lever a pushes theslottedlevera outward and causes the transparent' plate to rotate about the bar a into the position shown in Fig. 10 out of the path of the descending'stamp.

Instead-of :being made as part of-=the stamp the transparent plate F may be formed as shown in Fig. 11 to be attached to exist- The plate F is affixed to a. "bar 0; provided with holes. at the-ends to .fit overpinson the sides a of the stamp.

ing stamps.

What I claim as my invention and desire to protect by Letters Pjatent,is v

1'. ;In atnrn-over self-inking printing stamp the combination with ,a transparent indic ing plat Q means operat d y the depression of the printing'surfiace to cause the said indicator togrotateaboutthe frame,

of the stamp i, outv of, the path. of,- the I printing surf In ,a turn-over selflinking printing stamp -..th comb n i n with a. r n pa indicating plateof agmember carryingthe indicating stamp, a .pivot on ,the frame of the stamp for the said .member, a slotted lever af ixed toone end :of said meinben'a connecting lever affixed to the undersidelof the. printing surface, a pin in said lever. engaging the slot inthe slotted lever to cause the :rotation of the transparent plate out of the path. of the printing surface as the 1 latter descends.

.In; testimony whereofI have hereunto set my. hand in, presence of two subscribing witnesses.

GEORGDA HU ILLIA R SHWQ Q .Witnesses:

J. OwnnN OFBRIE Geo. H. OZBmnN. 

